1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 #include "dm_services.h"
26 #include "dc.h"
27 #include "core_types.h"
28 #include "clk_mgr.h"
29 #include "dce100_hw_sequencer.h"
30 #include "resource.h"
31 
32 #include "dce110/dce110_hw_sequencer.h"
33 
34 /* include DCE10 register header files */
35 #include "dce/dce_10_0_d.h"
36 #include "dce/dce_10_0_sh_mask.h"
37 
38 struct dce100_hw_seq_reg_offsets {
39 	uint32_t blnd;
40 	uint32_t crtc;
41 };
42 
43 static const struct dce100_hw_seq_reg_offsets reg_offsets[] = {
44 {
45 	.crtc = (mmCRTC0_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL),
46 },
47 {
48 	.crtc = (mmCRTC1_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL),
49 },
50 {
51 	.crtc = (mmCRTC2_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL),
52 },
53 {
54 	.crtc = (mmCRTC3_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL),
55 },
56 {
57 	.crtc = (mmCRTC4_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL),
58 },
59 {
60 	.crtc = (mmCRTC5_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL),
61 }
62 };
63 
64 #define HW_REG_CRTC(reg, id)\
65 	(reg + reg_offsets[id].crtc)
66 
67 /*******************************************************************************
68  * Private definitions
69  ******************************************************************************/
70 /***************************PIPE_CONTROL***********************************/
71 
72 bool dce100_enable_display_power_gating(
73 	struct dc *dc,
74 	uint8_t controller_id,
75 	struct dc_bios *dcb,
76 	enum pipe_gating_control power_gating)
77 {
78 	enum bp_result bp_result = BP_RESULT_OK;
79 	enum bp_pipe_control_action cntl;
80 	struct dc_context *ctx = dc->ctx;
81 
82 	if (power_gating == PIPE_GATING_CONTROL_INIT)
83 		cntl = ASIC_PIPE_INIT;
84 	else if (power_gating == PIPE_GATING_CONTROL_ENABLE)
85 		cntl = ASIC_PIPE_ENABLE;
86 	else
87 		cntl = ASIC_PIPE_DISABLE;
88 
89 	if (!(power_gating == PIPE_GATING_CONTROL_INIT && controller_id != 0)){
90 
91 		bp_result = dcb->funcs->enable_disp_power_gating(
92 						dcb, controller_id + 1, cntl);
93 
94 		/* Revert MASTER_UPDATE_MODE to 0 because bios sets it 2
95 		 * by default when command table is called
96 		 */
97 		dm_write_reg(ctx,
98 			HW_REG_CRTC(mmMASTER_UPDATE_MODE, controller_id),
99 			0);
100 	}
101 
102 	if (bp_result == BP_RESULT_OK)
103 		return true;
104 	else
105 		return false;
106 }
107 
108 void dce100_prepare_bandwidth(
109 		struct dc *dc,
110 		struct dc_state *context)
111 {
112 	dce110_set_safe_displaymarks(&context->res_ctx, dc->res_pool);
113 
114 	dc->clk_mgr->funcs->update_clocks(
115 			dc->clk_mgr,
116 			context,
117 			false);
118 }
119 
120 void dce100_optimize_bandwidth(
121 		struct dc *dc,
122 		struct dc_state *context)
123 {
124 	dce110_set_safe_displaymarks(&context->res_ctx, dc->res_pool);
125 
126 	dc->clk_mgr->funcs->update_clocks(
127 			dc->clk_mgr,
128 			context,
129 			true);
130 }
131 
132 /**************************************************************************/
133 
134 void dce100_hw_sequencer_construct(struct dc *dc)
135 {
136 	dce110_hw_sequencer_construct(dc);
137 
138 	dc->hwseq->funcs.enable_display_power_gating = dce100_enable_display_power_gating;
139 	dc->hwss.prepare_bandwidth = dce100_prepare_bandwidth;
140 	dc->hwss.optimize_bandwidth = dce100_optimize_bandwidth;
141 }
142 
143